NGC 6888, The Crescent Nebula (Mark Wetzel)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · NGC 6888

NGC 6888, The Crescent Nebula, Mark Wetzel

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NGC 6888, The Crescent Nebula

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NGC 6888, The Crescent Nebula

I went to a remote site in the Coast Range of Oregon for four imaging sessions in August to create an image of the Crescent Nebula in the constellation Cygnus. The first night had unexpectedly excellent seeing and transparency. The second, third and fourth nights were average, so the stars were a bit bloated. The emission nebula was captured with narrowband filters, Hydrogen-alpha (Ha), Oxygen-III (OIII) and Sulfur-II (SII). I also took short exposures with Red, Green and Blue filters to capture the natural color of the stars. This is a false color image that combines Ha and SII in the red channel, Ha and OIII in the green channel and OIII in the blue channel. The RGB star color image was blended with the false color image to produce the final result. This image was challenging to obtain a color balance that highlights the structure in the reds and the faint glow in the green-blue OIII. The stars are not quite right.

Narrowband imaging
Schmidt-Cassegrain Telescope (SCT) Imagers
ZWO ASI1600MM/QHY163M

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Astrometry.net job	3817782
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NGC 6888, The Crescent Nebula

NGC 6888, The Crescent Nebula

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NGC 6888, The Crescent Nebula

NGC 6888, The Crescent Nebula

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